Photosensitive epilepsy can be triggered by repeating patterns, too (stripes with a certain spacing in the visual field, for example). That's why optical illusi

Photosensitive epilepsy can be triggered by repeating patterns, too (stripes with a certain spacing in the visual field, for example). That's why optical illusions occasionally have epilepsy warnings attached. Wikipedia has some reasonable information on the subject: http://en.wikipedia.org/wiki/Photosensitive_epilepsy http://en.wikipedia.org/wiki/Photosensitive_epilepsy